Pyramid Charts

A four level pyramid model of different types of Information Systems based on the different levels of hierarchy in an organization. The first level represents transaction processing systems for workers. The second level represents management information systems for middle managers. The third level represents decision support systems for senior menegers. The fourth level represents executive information systems for executives.
"The "classic" view of Information systems found in the textbooks in the 1980s was of a pyramid of systems that reflected the hierarchy of the organization, usually transaction processing systems at the bottom of the pyramid, followed by management information systems, decision support systems, and ending with executive information systems at the top. Although the pyramid model remains useful, since it was first formulated a number of new technologies have been developed and new categories of information systems have emerged, some of which no longer fit easily into the original pyramid model.
Some examples of such systems are:
data warehouses,
enterprise resource planning,
enterprise systems,
expert systems,
search engines,
geographic information system,
global information system,
office automation." [Information systems. Wikipedia]
This diagram was redesigned using the ConceptDraw PRO diagramming and vector drawing software from Wikimedia Commons file Four-Level-Pyramid-model.png. [commons.wikimedia.org/ wiki/ File:Four-Level-Pyramid-model.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
The triangle chart example "Information systems types" is included in the Pyramid Diagrams solution from the Marketing area of ConceptDraw Solution Park.

"Graham proposed a "disagreement hierarchy" in a 2008 essay "How to Disagree", putting types of argument into a seven-point hierarchy and observing that "If moving up the disagreement hierarchy makes people less mean, that will make most of them happier."
Although originally written as a simple list, Graham's hierarchy can be represented as a pyramid with the most convincing form of disagreement at the top, and the weakest at the bottom.
Graham notes that articulate forms of name-calling ("The author is a self-important dilettante.") are no different from crude insults, in this hierarchy." [Paul Graham (computer programmer). Wikipedia]
The pyramid diagram example "Graham's hierarchy of disagreement" was redesigned using the ConceptDraw PRO diagramming and vector drawing software from Wikimedia Commons file Graham's Hierarchy of Disagreement.svg. [commons.wikimedia.org/ wiki/ File:Graham's Hierarchy of Disagreement.svg]
The triangle chart example "Graham's hierarchy of disagreement" is included in the Pyramid Diagrams solution from the Marketing area of ConceptDraw Solution Park.